kVA to Amps 3 Phase Calculator
Convert kVA to amps in a 3 phase system using the standard electrical formula. Quickly estimate current for industrial and commercial power systems.
This is a specialized version of the kVA to Amps Calculator.
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Result
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I = (kVA x 1000) / (sqrt(3) x V)
This 3 phase formula converts apparent power to line current. Use line-to-line voltage for practical design steps such as breaker and cable sizing.
Example
- 10 kVA at 400V -> 14.4 A (3-phase)
- 25 kVA at 480V -> 30.1 A (3-phase)
FAQ
What is the formula for kVA to amps in 3 phase?
Use I = (kVA x 1000) / (sqrt(3) x V), where V is line-to-line voltage.
Why is sqrt(3) used in 3 phase calculations?
Three-phase power relationships include a vector factor between phase and line quantities, which appears as sqrt(3) in current conversion.
What voltage should I use?
For 3 phase conversion, use the system line-to-line voltage such as 400 V, 415 V, or 480 V.